Here's why:

* Carbon disulfide (CS₂) has a chemical formula: This indicates that it's a compound made of multiple elements bonded together.

* Covalent bonds: Carbon disulfide is formed by covalent bonds, meaning that carbon and sulfur atoms share electrons.

* Discrete units: The covalent bonds create distinct, individual units of CS₂ molecules.

Therefore, carbon disulfide exists as individual molecules, not just isolated atoms.